Thomas Edison grew up in the 1850s.
He learned to work as a telegraph opreator.
Edison found a way to improve the telegraph.
Thomas unvented te phonogragh.
Thomas invented more than one thousand products.
다음검색
Thomas Edison grew up in the 1850s.
He learned to work as a telegraph opreator.
Edison found a way to improve the telegraph.
Thomas unvented te phonogragh.
Thomas invented more than one thousand products.